74VHCT74 查看數據表（PDF） - Fairchild Semiconductor

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74VHCT74

Dual D-Type Flip-Flop with Preset and Clear

Fairchild Semiconductor 

Absolute Maximum Ratings(Note 1)

Supply Voltage (VCC)

DC Input Voltage (VIN)

DC Output Voltage (VOUT)

(Note 2)

(Note 3)

Input Diode Current (IIK)

Output Diode Current (IOK)

(Note 4)

DC Output Current (IOUT)

DC VCC/GND Current (ICC)

Storage Temperature (TSTG)

Lead Temperature (TL)

Soldering (10 seconds)

−0.5V to +7.0V

−0.5V to +7.0V

−0.5V to VCC + 0.5V

−0.5V to 7.0V

−20 mA

±20 mA

±25 mA

±50 mA

−65°C to +150°C

260°C

Recommended Operating

Conditions (Note 5)

Supply Voltage (VCC)

Input Voltage (VIN)

Output Voltage (VOUT)

(Note 2)

(Note 3)

4.5V to 5.5V

0V to +5.5V

0V to VCC

0V to 5.5V

Operating Temperature (TOPR)

−40°C to +85°C

Input Rise and Fall Time (tr, tf)

VCC = 5.0V ± 0.5V

0 ns/V ∼ 20 ns/V

Note 1: Absolute maximum ratings are values beyond which the device

may be damaged or have its useful life impaired. The databook specifica-

tions should be met, without exception, to ensure that the system design is

reliable over its power supply, temperature, and output/input loading varai-

bles. Fairchild does not recommend operation outside databook specifica-

tions.

Note 2: HIGH or LOW state. IOUT absolute maximum rating must be

observed.

Note 3: VCC = 0V.

Note 4: VOUT < GND, VOUT > VCC.(Outputs Active)

Note 5: Unused inputs must be held HIGH or LOW. They may not float.

DC Electrical Characteristics

Symbol

VIH

VIL

VOH

VOL

IIN

ICC

ICCT

Parameter

HIGH Level

Input Voltage

LOW Level

Input Voltage

HIGH Level

Output Voltage

LOW Level

Output Voltage

Input Leakage Current

Quiescent Supply Current

Maximum ICC/Input

VCC

(V)

4.5

5.5

4.5

5.5

4.5

4.5

4.5

4.5

0–5.5

5.5

5.5

IOFF

Output Leakage Current

0.0

(Power Down State)

TA = 25°C

Min

Typ

Max

2.0

2.0

0.8

0.8

4.40

4.50

3.94

0.0

0.1

0.36

±0.1

2.0

1.35

+0.5

TA = −40°C to +85°C Units

Min

Max

Conditions

2.0

V

2.0

0.8

V

0.8

4.40

3.80

0.1

0.44

±1.0

20.0

1.50

+5.0

V VIN = VIH IOH = −50 µA

or VIL IOH = −8 mA

V VIN = VIH IOL = 50 µA

or VIL IOL = 8 mA

µA VIN = 5.5V or GND

µA VIN = VCC or GND

mA VIN = 3.4V

Other Inputs = VCC or GND

µA VOUT = 5.5V

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